Developing a DSL Graphical Notation - Eclipse Modeling Project: A Domain-Specific Language Toolkit - page 124

adapterFactory = new ComposedAdapterFactory(
ComposedAdapterFactory.Descriptor.Registry.INSTANCE);

adapterFactory.addAdapterFactory(new
ResourceItemProviderAdapterFactory());
adapterFactory.addAdapterFactory(new
RequirementsItemProviderAdapterFactory());
adapterFactory.addAdapterFactory(new
ReflectiveItemProviderAdapterFactory());

TransactionalEditingDomain domain =
TransactionalEditingDomain.Factory.INSTANCE.createEditingDomain();
domain.setID("org.eclipse.requirements.EditingDomain");

// Add a listener to set the most recent command's affected objects
// to be the selection of the viewer with focus.
domain.getCommandStack() .addCommandStackListener(new
CommandStackListener() {
public void commandStackChanged(final EventObject event) {
getContainer().getDisplay().asyncExec(new Runnable() {
public void run() {
firePropertyChange(IEditorPart.PROP_DIRTY);
// Try to select the affected objects.
Command mostRecentCommand = ((CommandStack)
event.getSource()).getMostRecentCommand();
if (mostRecentCommand != null) {
setSelectionToViewer(mostRecentCommand.getAffectedObjects());
}
if (propertySheetPage != null
&& !propertySheetPage.getControl().isDisposed()) {
propertySheetPage.refresh();

}

}
});

}
});

// Create the editing domain with a special command stack.
editingDomain = (AdapterFactoryEditingDomain) domain ;

}

Open your requirements.gmfgen model and locate the Editing
Domain ID property in the Editor category of the Gen Diagram
ModelEditPart element part. Set the value of this property to the same ID we
previously set for the TransactionalEditingDomain , as seen in Figure 4-24.